1865.] 91 



4. Philanthns laticinctus, n. sp. 



Black ; face silvery : clypeus, collar, tubercles, scutellums, tegulse, two spots 

 on metathorax, legs in part, and broad bands on abdomen, lemon-yellow; wings 

 hyaline. 



Male. — IJlack, opaque, very densely and finely punctured, thinly 

 clothed with a silvery-cinereous pubescence ; head large, wider than 

 the thorax ; face and cheeks rather densely clothed with a fine, ap- 

 pressed silvery pubescence ; clypeus, and mandibles except tips, yellow; 

 antenna) rather long, slender, subfilifbrm, the flagellum a little attenu- 

 ated at base, black above, brown beneath, paler at base, the scape yel- 

 low beneath. Thorax : an uninterrupted line on the collar, extending 

 down irregularly on each side, the tubercles, confluent with a large spot 

 behind and just beneath the anterior wing, scutellum and a dot at each 

 basal corner, postscutelluni, a large oblong-ovate spot on each side of 

 metathorax, and the tegulte. lemon-yellow ; metathorax with a rather 

 deep, longitudinal channel on the dorsal middle. Wings pure hyaline, 

 iridescent ; nervures pale fuscous. Legs : coxre and trochanters black 

 or piceous-black ; femora dull honey-yellow, blackish at base and yellow 

 at tips and beneath ; tibife yellow above, honey-yellow beneath ; tarsi 

 honey-yellow. Abdomen elongate-ovate, segments contracted at base, 

 especially the anterior ones; the five basal segments each with a 

 broad, continuous, lemon-yellow band, leaving the basal and apical 

 margins narrowly black; the two apical segments black, immaculate; 

 venter with a yellow spot on each side of the second segment, and a 

 more or less interrupted yellow fascia on each of the third and fourth 

 segments. Length i — 42 lines; expanse of wings 6] — 7 lines. 



Hdb. — Rocky Mountains, Colorado Territory, (Ridings.) Coll. Ent. 

 Soc. Philad. 



Two % specimens; 9 unknown. A pretty and distinct little species, 

 easily recognized by the broad, continuous and uniform bands on the 

 abdomen. 



5. Philanthus albopilosus, n. sp. 



Black, thickly clothed with white pubescence ; face, tibiae and tarsi, tegulae, 

 broad bands on three basal segments of aijdomen and spots on the remaining 

 segments, yellow ; wings pure hyaline. 



Mali . — Black, shining, indistinctly punctured, head, thorax, legs 

 and base of abdomen thickly clothed with a rather long. fine, white 

 pubescence, a little silvery in certain lights ; head wider than the tho- 

 rax ; the entire face, up to the ocelli, and the clypeus, pale yellow, 

 sometimes slightly tinged with honey-yellow; mandibles black; the 

 front slightly raised; antennae black, gradually thickened towards the 

 apex, the second joint of the flagellum cylindrical ; the scape beneath, 



